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Observation of an excited charmed baryon decaying into Xi(c)(0)pi(+)
Ammar, Raymond G. Baringer, Philip S. Bean, Alice Besson, David Zeke Coppage, Don Copty, N. Davis, Robin E. P. Hancock, N. Kotov, S. Kravchenko, I.
Ammar, Raymond G.
Baringer, Philip S.
Bean, Alice
Besson, David Zeke
Coppage, Don
Copty, N.
Davis, Robin E. P.
Hancock, N.
Kotov, S.
Kravchenko, I.
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Abstract
Using data recorded by the CLEO II detector at the Cornell Electron Storage Ring, we report the first observation of an excited charmed baryon decaying into Xi c(0) pi(+). The state has mass difference M(Xi(c)(0) pi(+)) - M(Xi(c)(0)) of 174.3 +/- 0.5 +/- 1.0 MeV/c(2), and a width of <3.1 MeV/c(2) (90% confidence level limit). We identify the new state as the Xi(c)(*+), the isospin partner of the recently discovered Xi(c)(0*).
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1996-07
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AMERICAN PHYSICAL SOC
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p810_1.pdf
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Gibbons, L, Johnson, SD, et al. Observation of an excited charmed baryon decaying into Xi(c)(0)pi(+). PHYSICAL REVIEW LETTERS. July 1996. 77(5) : 810-813